999250000 has 140 divisors (see below), whose sum is σ = 2770589536. Its totient is φ = 342000000.

The previous prime is 999249997. The next prime is 999250067. The reversal of 999250000 is 52999.

999250000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (140).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1749715 + ... + 1750285.

Almost surely, 2^999250000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999250000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385294768).

999250000 is an abundant number, since it is smaller than the sum of its proper divisors (1771339536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999250000 is an frugal number, since it uses more digits than its factorization.

999250000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 999250000 is about 31610.9158361475. The cubic root of 999250000 is about 999.7499374739.

The spelling of 999250000 in words is "nine hundred ninety-nine million, two hundred fifty thousand".